Pressed-steel carline.



W. A. BREWER.

PRESSED STEEL CARLINE.

APPLICATION FILED Aue.I9. 1914.

Patented July COLUMBIA PLANOORAPH cm, WASHXNGTDN. D. c.

Fl i

WILLIAM A. BREWER, .OF PITTSBURGH,PENNSYLVANIA, -ASSIGNQR TO'P. I-I.MURPHY COMPANY, OF PARNASSUS, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

I PRESSED-STEEL CARLINE.

master.

Specification of Letters Patent;

Patented July 3, 1915.

:Applicationfiled. August 19, 1914. Seria1Noa857A33.

To all whom it mayconoem Be it known that I, WILLIAM A. BREWER, acitizen of the United States, and a resident of the city of Pittsburgh,in the county of Allegheny and State of Pennsylvania, have invented anew and useful Improvement in Pressed-Steel Car-lines, of which thefollowing is a specification.

My invention relates to carlines TOI'rl'fl-llway box cars and similarcars; and has for its objects to provide a metal carline which can becheaply made and which will have the metal distributed therein toproduce a strong and yet light carline; gtoprovide a carline which canbe strongly fastened to the side plates of the car without cutting saidside plates to any great. extent; and to attain certain advantages whichwill be more fully set forth hereinafter.

In the accompanying drawing which forms part of this specification, andin which like symbols refer to like parts throughout, Figure 1 is a topplan view of part of a carline embodying the invention, showing theridge pole and purlins attached to said carline, and said carlineattached to one of the side plates of the car; Fig. 2 is a sideelevation of part of the carline showing the ridge pole, purlins andside plate in vertical section; Fig. 3 is a cross-section on the line 33on Fig. 2; and Fig. 4; is a crosssection on the line 4c4; on Fig. 2.

The carline shown in the accompanying drawing is preferably made of asingle metal plate. Said plate is bent along longitudinal lines to forma carline which is substantially Z-shape in cross-section. Said carlinecomprises a vertical web 1, an upper flange 2, and a lower flange 3. Theouter longitudinal edge portion of the lower flange 3 is bent upwardlyto form an auxiliary flange 4 on said lower flange. The outerlongitudinal edge portion of the upper flange 2 is bent downwardly toform an auxiliary flange 5 on said upper flange.

The web 1 has its greatest depth or vertical height at the middle of thecarline, and

the depth of said web decreasesuniforrnly toward the ends of saidcarline. The lower flange 3 is widest at the middle of the carline, andthe width of said lower flange de creases uniformly toward the ends ofsaid carline. The upper flange 2 is narrowest at the middle of thecarline, and the width of said upper flange increases toward the ends ofthe carline proportionately to the amount that the web 1 decreases inheight and the lower flange 3 decreases in width. Vertically extendingcorrugations 6 are pressed out of web 1 at intervals throughout itslength and preferably alternately in opposite directions therefrom. Alongitudinally extending corrugation 7 is pressed up from each endportion of the upper flange 2.

Each end portion of the carline is constructed the'same and is fastenedto each s de plate in the same way; and a descriptlon of'the connectionbetween one side plate and the carline will suflice for both. The web 1of the carline is 'cut away from the upper flange 2 and the lower flange3 for a short distance inwardly from the end of the carline. The endportion 8 of the upper flange 2, which projects beyond the end of theweb 1, is longer than the corresponding end portion 9 of the lowerflange 3. The auxiliary flange 5 of the upper flange 2 is flattened outfor a short distance inwardly from the end of said flange. The auxiliaryflange 4 of the lower flange 3 is also flattened out for a shortdistance inwardly from the end of said flange. The end portion 9 of thelower flange 3 is bent along a line extending transversely of saidflange to can tend downwardly in the plane of the end of the web 1. Ashallow groove is cut in the upper face of the wooden side plate 10, andthe end portion 8 of the upper flange 2 is fitted in said groove, theend of the web 1 and the end portion 9 of the lower flange 3 being incontact with the inner face of the side plate 10. The tip end portion 11of the upper flange 2 is bent downwardly to engage the outside face ofthe side plate 10. The carline is secured to the side plate 10 by bolts,one bolt 12 passing horizontally through the end portion 9 of the lowerflange 3; another bolt 13 passing horizontally through the tip endportion 11 of the upper flange 2; and two bolts 14: passing verticallythrough theend portion 8 of the upper flange 2. The ridge pole 15 andthe purlins 16 are bolted to the upper flange 2 of the carline at thedesired points.

A carline is subjected to a greater downward stress at-the ridge, due tothe weight of the car roof, than at the eaves. At the eaves where thecarline is connected to the side plates, it is subjected to a horizontalbending stress when the car is in service, due

to the tendency of the framing ofthe car to be thrown out of line. Thecarline shown and described has its greatest depth or vertical height atthe ridge, and its greatest width at the eaves. Thus, the metal isdistributed in the carline to the best advantage.

. said top flange is subjected to a sidewise bending. The auxiliaryflanges 4E and 5 stiffen the lower flange 3 and upper flange 2,respectively.

When the carline is applied to wooden side plates, it is not necessarytoeut said side plates to any great extent). shallow groove as deep asthe thickness of the upper flange 2 being all that is necessary. Thecarline is shown applied to wooden side plates, but it may be appliedtometal side plates; and when applied to metal side plates, the Woodenfillers generally used for making the top of the side plates between thecarlines even with the tops of the carlines need not be thick.

The upper flange 2 and the lower flange 2 3 of the carline engage theoutside face and the inside face respectively of each side plate 10; andthus the side plates are 7 strongly held against movement either closerthereof, and an upper flang d a lower flange projecting horizontallyfrom said web in opposite directions, said upper flange increasing inwidth from the middle of the carline toward the ends thereof, said lowerflange decreasing in width from the middle 45 of the carline toward theends thereof.

WILLIAM A. BREWER. Witnesses:

J. P. DESMOND, (Ms. C. SHORT.

Gopiesof this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. 0.

